Iraq
I think the point both sides may be missing here is that the primary value of having a free Iraq on the border of Iran is not to serve as a forward fire base, but to serve as an example. There is a lot of evidence in Saudi Arabia, Syria, and other Arab nations that it is already serving this function. If Iraq manages to translate itself into a free nation over the long term--and we will learn much after the first real election--the example will be even more effective.